Adjustable feed for fountain pens



' x.. F. EvEN'soN ADJUSTABLE FEED FOR FOUNTAIN PENS Filed June l'. III

Patented July 15, 1924.

UNITED STATES PATENT OFFICE.

LYTH F. EVENSON.- OF `SII[.VER'.[O1\T, OREGON; NORA EVENSON EXECUTRIX 0F SAID LYTH F. EVENSON, DECEASED.

ADJUSTABLE FEED FOR FOUNTAIN PENS.

Application led June 4,

To 1.77 11i/wm, it muy concern:

Be it knoyvn that I, LYTH F. EvnNso-N, a 'citizen of the United States, residing at Silverton, in the county of Marion and State of Oregon, have invented new and useful Improvements in Adjustable Feed for Fountain Pens, of which the following is a speciication.

This invention relates to fountain pens and has for its object the provision of a novel feed device which isadjustable Whereby to regulate the quantity of ink 'flowing to the pen point, the means for effecting the adjustment being operated from the exterior of the pen Without it being necessary to disconnect or remove any of the parts.

An important object is the provision of a feed of this character which may be used in connection with pens of the so-called selffiller type as Well as the ordinarytype requiring filling by means of a dropper or the like.

An additionalV object is the provision of a feed of this character which will be simple and inexpensive in manufacture` easy to control, positive in action, `efiicient and durable in service and a general improvement in the art.

With the above and other objects and advantages in view the invention consists in the details of construction to be hereinafter more fully described and claimed and illustrated in the accompanying drawings, in which:

Figure 1 is a longitudinal section through a portion of a fountain pen embodying my invention, Y

Figure 2 is a similar view showing a different position of the adjusting means and Figure 3 is a detail cross section on the line 3 3 of Figure 1.

Referring more particularly to the dravvings the numeral 10 designates the shell or body which closes one end of the usual barrel 11 and which is formed with an extension 12 upon which is secured the ink bag, not shown, in case the pen be of that type which is socalled self filling. In the type of pen requiring filling by means of a dropper there is no bag employed but this detail does not affect the present invention one Way or the other.

Mounted Within one end of the member 1() is a detachable or removable pen point 13 of usual construction, the point being 1923. Serial No. 643,386.

held frictionally in place in the ordinary manner.

The essential feature in the presentdevice is the provision of an elongated member 14 which is located Within a bore 15 inthe body 10 and which extends to a point substantially midway of the pen. One side of this member 14 is slotted as shovvn at 16 and this slot is substantially 'T-shaped in cross section with its bottom Wall 17 inclined as shown. This slot communicates with a duct 18 in one edge of the memberjli, lwhich duct terminates short of the outer end of the member and is for the purpose yof conducting ink tothe pen. The member'14 is furlA ther formed with a longitudinally extending passage 19 `for a purpose to be described. j Slidable along 'the slot 16 is a regulating Wedge 20 which is of a. cross sectional shape to fit Within the slot and which has an inclined Wall 21 co-operating With the inclined bottom 17 of the slot. While it is not absolutely necessary the top of this Wedge member may befluted or grooved as indicated at 22 so as `to permit the. iiovv of a certain quantity of'ink even though a Wedge member may be in its innermost position filling the slot. The control means for this Wedge member consists of an elongated rod 23 which extends through the passage 19 and which has one end extended laterally as shown at 24 and secured Within the larger or inner end of the Wedge member. This rod extends beyond the body so as to be exposed and the projecting end is formed With a plurality of notches 25 Within any one of which may be engaged the thumb nail of the operator for the purpose of adjusting the position of the rod. The number of notches exposed vvill also serve as a guide to indicate the position of the movable Wedge member.

In the operation it is of course apparent that the flow of the ink is controlled by the position of the Wedge member, it being obvious that When the Wedge is pulled toward the pen point the flow Will be reduced. By proper manipulation the exact rate of feed may be regulated to meet the requirements of the individual user. The operation and construction are both very simple and the device has proved to be extremely eiiicient and satisfactory in every Way.

While I have shown and described the preferred embodiment of the invention it is of course to be understood that l reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of 'the invention or the scope of the subjoined claims.

Having thus described my invention l claim:

l. In a fountain pen, a body carrying a pen point and formed with a bore7 al feed bar located Within the bore and having an inclined slot communicating with a duct leading to the pen point7 a Wedge -slidable along said slot, and a handle member slidable longitudinally of the feed bar and connected Wit-h said Wedge.

2. In a fountain pen, a body carrying a pen point and formed With a bore, a feed bar located Within the bore and having an inclined slot communicating with a duct leading to the pen point, a. Wedge slidable along said slot, and a handle memberslidable longitudinally of the feed bar and connected with said Wedge, said handle member being formed Withj means for engagement by a thumb nail for elfecting movement.

3. In al fountain pen, abody carrying a pen point and formed with a bore, a feed bar located Within the bore and having an inclined slot communicating With a duct leading to the pen point, a. Wedge slidable 'along said slot, and a handle member slidable longitudinally of the `feed bar and connected with said Wedge and indicating means on the projecting end of the handle member for indicating the position of the Wedge.

4. In a fountain pen, a body carrying a pen point and formed with a bore, a `feed bar located Within the body and formed with a slot and a duct leading to the pen point,an adjustable closure member for said slot, and operating means for the closure member including a rod slidable longitudinally through the feed bar and having its inner end operatively connected with said closure means and its outer end formed to constitute a .handle for shifting the position of the closure member.

5. In'a yfountain pen, a body carrying a pen point and formed With a bore, a member located 'Within the bore and formed with a slot having an inclined bottom and leading to a duct extending to the pen point, a vWedge slidable along .said slot and means for moving said \fedge, including a rod having one end secured to the Wedge and slidable along a passage in said member. the rod projecting beyond said. member and having itsprojecting end "formed .with a'notch engageable by the thumb nail for effecting movement of the Wedge.

6. In a fountain pen, a body carrying a pen point and formed with a bore, a member located Within .the bore and formed lwith a slot having an inclined bottom and lead` ing to a duct extending to the Apen point, a .Wedge slidable along said slot and means for moving said Wedge, including a rod having one end secured to the Wedge and slid.- able along al passage in said member, the rod projecting beyond said member and having its projecting endy formed With a plurality of notches selectively engageable by a thumb nail for moving the Wedge, the number of notches exposed indicating the position of the Wedge.

In testimony whereof I atlix my signature.

LYTH FX 'EVENSON 

